A 2-D Finite-Element Model for Electro-Thermal Transients in Accelerator Magnets

Abstract

Superconducting accelerator magnets require sophisticated monitoring and means of protection due to the large energy stored in the magnetic field. Numerical simulations play a crucial role in understanding transient phenomena occurring within the magnet, and can, therefore, help to prevent disruptive consequences. We present a 2-D FEM model for the simulation of electro-thermal transients occurring in superconducting accelerator magnets. The magnetoquasistatic problem is solved with a modified magnetic vector potential formulation, where the cable eddy currents are resolved in terms of their equivalent magnetization. The heat balance equation is then investigated, and the relevant heat sources are discussed. The model implements a two-port component interface and is resolved, as part of an electrical circuit, in a cooperative simulation scheme with a lumped-parameter network.

4 pages, 12 figures, approved for publication, IEEE Transactions on Magnetics, 2017

References in corpus (1)

• Optimized Field/Circuit Coupling for the Simulation of Quenches in Superconducting Magnets

Cited by in corpus (6)

• STEAM: A Hierarchical Co-Simulation Framework for Superconducting Accelerator Magnet Circuits
• Coupling of Magneto-Thermal and Mechanical Superconducting Magnet Models by Means of Mesh-Based Interpolation
• Transient Finite Element Simulation of Accelerator Magnets Using Thermal Thin Shell Approximation
• Fast Failures in the LHC and the future High Luminosity LHC*
• Quasi-3D Magneto-Thermal Quench Simulation Scheme for Superconducting Accelerator Magnets
• Modelling Conduction Cooling of Superconducting Accelerator Magnets using a Thermal Thin Shell Approximation